站内搜索脚本(四)

下面框中为脚本显示区

脚本说明:
第一步：把如下代码加入<body>区域中
 <form name="database">
  <input type="hidden" name="list" value='http://www.webcrawler.com~Webcrawler|keywords for first file go here separated by spaces^A great search engine from the makers of AOL!*http://java2000.126.com~java2000 collections|java javascript search html download cgi perl dhtml games activex 下载 脚本^coolest java and javascript collections for internet surfers to enhance web page!*http://www.javagoodies.com/~javagoodies|ActiveX ASP C/C++ CGI Databases java javascript^coolest javagoodies!*'>
</form>
<p> 
  <script language="JavaScript">

</script>
  <script language="JavaScript1.1">

</script>
  <script language="JavaScript">
<!--
// When set to true, searching for "fun*y" matches in the string "fun sky".
//  (it will also match the string "fun and here is some long dummy text for you"
//  which is obviously not what they were looking for, so we suggest you set
//  match_across_word_boundaries to false)
// When set to false, the * operator will not match across word boundaries so
// the above example will not match.
match_across_word_boundaries = false; // false is suggested strongly

// ************ NO NEED TO MODIFY ANYTHING BELOW THIS POINT ************

var amorphous = document.database.list.value;
temp_str = amorphous.substring(amorphous.length-2,amorphous.length);
if (temp_str.indexOf("*") == -1)
 amorphous += "* ";
else
 amorphous += " "; // amorphous database must have characters after last asterisk

database_length = 0; // Netscape 2 fix
var database = new Database(); // read in from amorphous database

menu_length = 0; // Netscape 2 fix
var menu = new Object();

string = "";
and_search = "or";
if (location.search.length > 1) {
 string = unescape(location.search.substring(1,location.search.length));
 pos = 0;
 while ((pos = string.indexOf('"',pos)) != -1) {
  string = string.substring(0,pos) + '\\"' + string.substring(pos+1,string.length);
  pos += 2;
 }
 if (string.substring(string.length-4,string.length) == "&and") {
  string = string.substring(0,string.length-4);
  and_search = "and";
 } else if (string.substring(string.length-6,string.length) == "&exact") {
  string = string.substring(0,string.length-6);
  and_search = "exact";
 } else  if (string.substring(string.length-3,string.length) == "&or") {
  string = string.substring(0,string.length-3);
  and_search = "or";
 }
 search(string);
}
document.write('<form name="entryform" class="pt9" onSubmit="return entry()">'
 +'Search for: <input type="text" type="pt9" size=15 name="keyword" value="'+string+'"> '
 +'<input type="button" class="pt9" value="Search" onClick="entry()"><br><select name="and_or" '
 +'size=1><option'+(and_search=="and"?" selected":"")+'>AND查询 '
 +'(AND)<option'+(and_search=="or"?" selected":"")+'>OR查询 '
 +'(OR)<option'+(and_search=="exact"?" selected":"")+'>完全'
 +'匹配</select><br>""可以使用通配符</form><br>'
 +'<form name="display"><select name="found" size=5>\n');
for (n=0; n<menu_length; n++)
 document.write('<option value="'+menu[n].url+'">'+menu[n].title+'\n');
if ((menu_length == 0) && (location.search.length <= 1))
 document.write('<option value="" class="pt9">Enter a search keyword above\n');
else if ((menu_length == 0) && (location.search.length > 1))
 document.write('<option value="">关键字"'
  +location.search.substring(1,location.search.length)+'"没有发现!\n');
document.write('</select><br><input type="button" class="pt9" onClick="go_there()" '
 +'value=" Go There "></form>');
// -->
</script>